Wireless charging apparatus and wireless charging method

Abstract

Disclosed herein are a wireless charging apparatus and a wireless charging method capable of avoiding a cross connection. A wireless charging apparatus, including: a controller receiving voltage range information from a mobile terminal and generating voltage pattern information corresponding to the voltage range information; a power converter generating authentication power having a predetermined voltage pattern corresponding to the voltage pattern information; and a resonator transmitting the authentication power to the mobile terminal.

What is claimed is: 
     
       1. A wireless charging apparatus, comprising:
 a controller configured to receive voltage range information from a mobile terminal and generate voltage pattern information corresponding to the voltage range information; 
 a power converter configured to generate authentication power having a predetermined voltage pattern corresponding to the voltage pattern information; and 
 a resonator configured to transmit the authentication power to the mobile terminal, 
 wherein the controller is configured to compare the voltage pattern information with a voltage pattern parameter received from the mobile terminal, and transmit power to the mobile terminal in response to the voltage pattern parameter matching the voltage pattern information. 
 
     
     
       2. The wireless charging apparatus according to  claim 1 , wherein the controller further includes a communication module configured to receive the voltage range information from the mobile terminal. 
     
     
       3. The wireless charging apparatus according to  claim 2 , wherein the controller further includes a storage unit configured to store the generated voltage pattern information. 
     
     
       4. The wireless charging apparatus according to  claim 1 , wherein the controller further includes an MCU configured to generate the voltage pattern information. 
     
     
       5. The wireless charging apparatus according to  claim 1 , wherein the controller is operated by being divided into an authentication section and a power transmission section configured to transmit power to the mobile terminal authenticated in the authentication section, generate the voltage pattern information and compare the voltage pattern information with a voltage pattern parameter received from the mobile terminal in the authentication section. 
     
     
       6. The wireless charging apparatus according to  claim 2 , wherein the controller is operated by being divided into an authentication section and a power transmission section configured to transmit power to the mobile terminal authenticated in the authentication section, and
 the authentication section is configured to start in response to the mobile terminal receiving advertising from the communication module. 
 
     
     
       7. The wireless charging apparatus according to  claim 1 , wherein the voltage range information includes information on a reference voltage, a high voltage, and a low voltage and the voltage pattern information selects one of a voltage range corresponding to a difference between the high voltage and the reference voltage and a voltage range corresponding to a difference between the reference voltage and the low voltage and selects and generates any first voltage and second voltage within the selected voltage range. 
     
     
       8. The wireless charging apparatus according to  claim 6 , wherein the controller further includes a sensing section in which at least one of a short-beacon and a long-beacon is repeated to transmit power prior to the authentication section and receives the advertising in the sensing section.